This argument is absurd. Inflation is high right now and it's because people are getting higher wages.
I just can't comprehend how people have become this stupid. the 80s neoliberal policy package was intentionally aimed at killing inflation in response to the oil crisis. The way they reduced inflation is through global trade, destroying unions and deregulation. All of this was to make sure that negotiation power of workers dropped like a rock and inflation followed wages. Low wage growth lead to low inflation.
A money system with low inflation or even deflation systematically undervalues present labor for the benefit of the holders of the biggest share of money. Someone who spends all their money massively benefits from wage increases and therefore inflation.
Just look at Bitcoin. If you own $100k of Bitcoin and it goes up 10x you will be a millionaire. If you only own $1000 then you only get $10000. It's rigged in favor of the already rich and rigged against those who are poor.
Literally every time someone talks about raising wages people use the inflation counter argument. "If we pay people more it would drive price increases and therefore inflation".
People take this shit for granted and then when they complain they talk about how 2% inflation is eating away at the $500 they have in their bank account and don't even consider that 2% inflation eats away at someone with $1 million in their bank account.
Let me tell you what saving in monetary terms does. It's just reducing your demand for labor. Labor cannot be stored. You either use it or lose it. Your insistence to not spend your money has to be balanced by letting the unpaid party take on debt in hope that you spend your money one day. So excessive saving is what drives excessive debt, not some stupid moral sense of irresponsibility. The alternative would be to keep the unpaid party unemployed and unemployment is a pretty obvious driver of poverty.
Don't make the mistake of thinking that saving lets the bank lend. No, the supply of credit is infinite. The only limit is the availability of solvent borrowers.